BS PD IEC TS 60079-42:2019

This part of IEC 60079, which is a Technical Specification, provides guidance for equipmentmanufacturers where electrical safety devices are used to reduce the likelihood of potentialignition sources becoming effective in Ex Equipment located in Explosive Atmospheres.Electrical safety devices perform a safety function to control potential ignition sources fromboth, electrical or non-electrical Ex Equipment in explosive atmospheres.Cross References:IEC 61508-4IEC 60079-0IEC 61508 (all parts)ISO 80079-37 IEC 61511-1IEC 61709IEC 61508-6IEC 61800-5-2IEC 60079-13IEC 60079-7IEC 60079-14